H
Heidi Jo Newberg
Researcher at Rensselaer Polytechnic Institute
Publications - 145
Citations - 56745
Heidi Jo Newberg is an academic researcher from Rensselaer Polytechnic Institute. The author has contributed to research in topics: Milky Way & Stars. The author has an hindex of 38, co-authored 138 publications receiving 53007 citations. Previous affiliations of Heidi Jo Newberg include University of California, Berkeley & Fermilab.
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Journal ArticleDOI
Spectroscopic Observations and Analysis of the Unusual Type Ia SN 1999ac
G. Garavini,G. Garavini,Greg Aldering,Greg Aldering,Alexis Amadon,Rahman Amanullah,P. Astier,Christophe Balland,Christophe Balland,Guillermo A. Blanc,Alex Conley,Alex Conley,Tomas Dahlen,Susana E. Deustua,Richard S. Ellis,Sebastien Fabbro,Vitaliy Fadeyev,Xiaohui Fan,Gastón Folatelli,Brenda Frye,Elinor L. Gates,R. Gibbons,Gerson Goldhaber,Gerson Goldhaber,Bertrand Goldman,Ariel Goobar,Donald E. Groom,J. Haissinski,D. Hardin,I. M. Hook,D. A. Howell,Stephen M. Kent,Alex G. Kim,R. A. Knop,Marek Kowalski,N. Kuznetsova,Brian C. Lee,Christopher Lidman,Javier Méndez,G. J. Miller,G. J. Miller,M. Moniez,M. Mouchet,A. Mourao,Heidi Jo Newberg,S. Nobili,S. Nobili,Peter Nugent,R. Pain,O. Perdereau,Saul Perlmutter,Saul Perlmutter,Robert Quimby,Nicolas Regnault,J. Rich,Gordon T. Richards,Pilar Ruiz-Lapuente,Bradley E. Schaefer,K. Schahmaneche,Eric P. Smith,A. L. Spadafora,Vallery Stanishev,R. C. Thomas,Nicholas A. Walton,Lifan Wang,W. M. Wood-Vasey,W. M. Wood-Vasey +66 more
TL;DR: In this paper, the authors present optical spectra of the peculiar Type Ia supernova (SN Ia) 1999ac, which extends from -15 to +42 days with respect to B-band maximum and reveal an event that is unusual in several respects.
Journal ArticleDOI
Three-dimensional Parameterization of the Stellar Locus with Application to QSO Color Selection
Heidi Jo Newberg,Brian Yanny +1 more
TL;DR: In this paper, a straightforward method for parameterizing and visualizing a locus of points in n-space is presented, which applies directly to the problem of distinguishing QSOs from Galactic stars in multicolor space.
Journal ArticleDOI
Spectroscopic Observations and Analysis of the Unusual Type Ia SN 1999ac
Supernova Cosmology,G. Garavini,Greg Aldering,Alexis Amadon,Rahman Amanullah,Pierre Astier,C. Balland,Guillermo A. Blanc,Alex Conley,Tomas Dahlen,Susana E. Deustua,R. Ellis S. Fabbro,Vitaliy Fadeyev,Xiaohui Fan,G. Folatelli,Brenda Frye,Elinor L. Gates,R. Gibbons,G. Goldhaber,Bertrand Goldman,A. Goobar,D. E. Groom,J. Haissinski,D. Hardin,I. M. Hook,D. A. Howell,Steve Kent,A. G. Kim,R. A. Knop,M. Kowalski,N. Kuznetsova,B. C. Lee C. Lidman,Javier Méndez,G. J. Miller,M. Moniez,M. Mouchet,A. Mourao,Heidi Jo Newberg,S. Nobili,Peter Nugent,R. Pain,O. Perdereau,Saul Perlmutter,R. M. Quimby,Nicolas Regnault,Jeffrey A. Rich,Gordon T. Richards,P. Ruiz-Lapuente,B. E. Schaefer,K. Schahmaneche,Eric P. Smith,A. L. Spadafora,Vallery Stanishev,R. C. Thomas,Nicholas A. Walton,Lian-Tao Wang,W. M. Wood-Vasey +56 more
TL;DR: In this paper, the authors present optical spectra of the peculiar Type Ia supernova (SN Ia) 1999ac, which extends from -15 to +42 days with respect to B-band maximum and reveal an event that is unusual in several respects.
Journal ArticleDOI
Mapping the Milky Way with LAMOST I: method and overview
Chao Liu,Yan Xu,Jun-Chen Wan,H. F. Wang,Jeffrey L. Carlin,Licai Deng,Heidi Jo Newberg,Zihuang Cao,Yong-Hui Hou,Yue-Fei Wang,Yong Zhang +10 more
TL;DR: In this paper, a statistical method was proposed to derive the stellar density profiles of the Milky Way from spectroscopic survey data, taking into account selection effects, and the method was validated using Galaxia mock data with two different selection functions.
Journal ArticleDOI
Maximum Likelihood Fitting of Tidal Streams With Application to the Sagittarius Dwarf Tidal Tails
Nathan Cole,Heidi Jo Newberg,Malik Magdon-Ismail,Travis Desell,Kristopher Dawsey,Warren Hayashi,Xinyang Fred Liu,Jonathan T. Purnell,Boleslaw K. Szymanski,Carlos A. Varela,Benjamin A. Willett,James Wisniewski +11 more
TL;DR: In this paper, a maximum likelihood method for determining the spatial properties of tidal debris and of the Galactic spheroid is presented, which can be applied to divide the stellar data into two catalogs: one which fits the stream density profile and one with the characteristics of the Spheroid.